package com.mmz.gulimall.product.exception;

import com.mmz.common.exception.BizCodeEnum;
import com.mmz.common.utils.R;
import lombok.extern.slf4j.Slf4j;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;

import java.util.HashMap;

/**
 * 集中处理所有异常
 * @author yangzhenjiang
 * @version 1.0
 * @description
 * @date 2020/8/17 22:36
 */
@Slf4j
@RestControllerAdvice(basePackages = "com.mmz.gulimall.product.controller")
public class GuLiMallExceptionControllerAdvice {

    /**
     * 拦截数据检验出错异常
     * @return
     */
    @ExceptionHandler(value = MethodArgumentNotValidException.class)
    public R handleVaildException(MethodArgumentNotValidException e){
        log.error("数据校验出现问题{},异常类型为{}",e.getMessage(),e.getClass());
        //获取异常中包含的异常信息
        BindingResult bindingResult = e.getBindingResult();
        HashMap<String, String> errorMap = new HashMap<>(6);
        //将数据异常存入map
        bindingResult.getFieldErrors().forEach(fieldError -> {
            errorMap.put(fieldError.getField(),fieldError.getDefaultMessage());
        });
        return R.error(BizCodeEnum.VAILD_EXCEPTION.getCode(),BizCodeEnum.VAILD_EXCEPTION.getMsg()).put("data",errorMap);
    }

    /**
     * 拦截任意异常
     * @param throwable
     * @return
     */
    @ExceptionHandler(value = Throwable.class)
    public R handleException(Throwable throwable){
        log.error("错误：",throwable);
        return R.error(BizCodeEnum.UNKNOW_EXCEPTION.getCode(),BizCodeEnum.UNKNOW_EXCEPTION.getMsg());
    }
}
